JPS59119795U - DC motor speed control circuit - Google Patents

DC motor speed control circuit

Info

Publication number
JPS59119795U
JPS59119795U JP1983012562U JP1256283U JPS59119795U JP S59119795 U JPS59119795 U JP S59119795U JP 1983012562 U JP1983012562 U JP 1983012562U JP 1256283 U JP1256283 U JP 1256283U JP S59119795 U JPS59119795 U JP S59119795U
Authority
JP
Japan
Prior art keywords
transistor
control circuit
input terminal
speed control
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1983012562U
Other languages
Japanese (ja)
Other versions
JPH0122400Y2 (en
Inventor
吉沢　輝久
晃 中村
古屋　操
Original Assignee
ミツミ電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ミツミ電機株式会社 filed Critical ミツミ電機株式会社
Priority to JP1983012562U priority Critical patent/JPS59119795U/en
Publication of JPS59119795U publication Critical patent/JPS59119795U/en
Application granted granted Critical
Publication of JPH0122400Y2 publication Critical patent/JPH0122400Y2/ja
Granted legal-status Critical Current

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  • Control Of Direct Current Motors (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の速度制御回路、第２図は本考案の一実施
例になる速度制御回路、第３図は本考案の他の実施例に
なる速度制御回路を夫々示す。 Ｍ・・・直流モータ、Ｑ工・・・駆動トランジスタ、Ｑ
２・・・分流トランジスタ、Ｒ１・・・帰還抵抗、ＲＡ
、Ｒ８・・・抵抗、Ｅｇ・・・モータの逆起電力、Ｒｇ
・・・モータの内部抵抗、ＺＤ・・・基準電圧源、１・
・・誤差検出器、２・・・定電流源、３・・・演算増巾
器。FIG. 1 shows a conventional speed control circuit, FIG. 2 shows a speed control circuit according to one embodiment of the present invention, and FIG. 3 shows a speed control circuit according to another embodiment of the present invention. M...DC motor, Q engineering...drive transistor, Q
2... Shunt transistor, R1... Feedback resistor, RA
, R8...Resistance, Eg...Motor back electromotive force, Rg
...Motor internal resistance, ZD...Reference voltage source, 1.
...Error detector, 2... Constant current source, 3... Arithmetic amplifier.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直流電源に接続されたモータ及び第１のトランジスタと
、該モータに接続された第１、第２及び第３の抵抗と、
該第１のトランジスタに対し所定比の電流が流れる第２
のトランジスタと、この第２のトランジスタのコレクタ
は該第１及び第２の抵抗の接続点に接続され、−入力端
及び他入力端を有しその出力が該第１及び第２のトラン
ジスタに接続された誤差検出器と、該−入力端と基準電
圧源を介した他入力端とが該第２又は第３の抵抗のいず
れか一方の抵抗の両端に接続されたものにおいて、該基
準電圧源と該第１又は第２の抵抗との間に演算増巾器を
接続した事を特徴とする直流モータの速度制御回路。a motor and a first transistor connected to a DC power source; first, second, and third resistors connected to the motor;
A second transistor through which a current of a predetermined ratio flows to the first transistor.
and the collector of the second transistor is connected to the connection point of the first and second resistors, has a - input terminal and another input terminal, and has an output connected to the first and second transistors. an error detector in which the - input terminal and the other input terminal via the reference voltage source are connected to both ends of either the second or third resistor; A speed control circuit for a DC motor, characterized in that an operational amplifier is connected between the resistor and the first or second resistor.
JP1983012562U 1983-01-31 1983-01-31 DC motor speed control circuit Granted JPS59119795U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1983012562U JPS59119795U (en) 1983-01-31 1983-01-31 DC motor speed control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983012562U JPS59119795U (en) 1983-01-31 1983-01-31 DC motor speed control circuit

Publications (2)

Publication Number Publication Date
JPS59119795U true JPS59119795U (en) 1984-08-13
JPH0122400Y2 JPH0122400Y2 (en) 1989-06-30

Family

ID=30143962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1983012562U Granted JPS59119795U (en) 1983-01-31 1983-01-31 DC motor speed control circuit

Country Status (1)

Country Link
JP (1) JPS59119795U (en)

Also Published As

Publication number Publication date
JPH0122400Y2 (en) 1989-06-30

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